Beta radiation dose equivalent value transmission ionization chamber

A radiation dose and ionization chamber technology, applied in the field of radiation monitoring, can solve the problem of untraceable dose meters, and achieve the effect of good versatility

Pending Publication Date: 2022-04-05
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The object of the invention is to design a kind of beta radiation dose equivalent magnitude transfer ionization chamber (abbreviation "transfer ionization chamber"), which is used to determine H in the beta ray secondary standard radiatio...

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  • Beta radiation dose equivalent value transmission ionization chamber

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0034] Such as figure 1 , 2 , 3, a kind of beta radiation dose equivalent value transfer ionization chamber provided by the present invention includes an annular ionization outer wall 9, an ionization chamber base 6 that is sealed and arranged on the bottom opening of the ionization outer wall 9, and also includes a set The high-voltage pole 5 and the collector assembly parallel to the base 6 of the ionization chamber inside the outer wall 9 of the ionization chamber, and the collector assembly is close to the base 6 of the ionization chamber.

[0035] It also includes a first high-voltage pressure ring 1 and a second high-voltage pressure ring 2. The top opening of the ionization outer wall 9 is the incident end of the beta radiation dose equivalent value transfer ionization chamber, and the second high-voltage pressure ring 2 is arranged inside the u...

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Abstract

The invention belongs to the technical field of radiation monitoring, and particularly relates to a beta radiation dose equivalent magnitude transmission ionization chamber which comprises an annular ionization chamber outer wall (9), an ionization chamber base (6) arranged on a bottom end opening of the ionization chamber outer wall (9) in a sealed mode, a high-voltage electrode (5) arranged in the ionization chamber outer wall (9) and parallel to the ionization chamber base (6) and a collector assembly. And the collector assembly is close to the ionization chamber base (6). According to the invention, the personal dose equivalent Hp (0.07) and the personal dose equivalent Hp (3) can be directly measured; according to the invention, the transmission ionization chamber is directly connected with the electrometer of a general type by using the three coaxial cables; the method does not need to be equipped with special signal reading equipment, and has the characteristics of flexibility and easiness in use.

Description

technical field [0001] The invention belongs to the technical field of radiation monitoring, and in particular relates to a beta radiation dose equivalent value transfer ionization chamber. Background technique [0002] High dose levels of beta radiation may exist in environments such as radioisotope production applications, radiopharmaceutical preparation, nuclear fuel production, reactor maintenance and decommissioning, and nuclear waste disposal. At present, for external exposure radiation, a lot of work has been carried out in China only for X and γ-ray radiation dose monitoring, and a lot of experience has been accumulated in the measurement guarantee of X and γ-ray external exposure monitoring equipment. However, the radiation dose monitoring of β-rays is often neglected in the working environment of the above-mentioned fields. Compared to a thin or unshielded gamma source, a beta source of the same size can produce more than 50 times the dose of gamma radiation. The...

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Application Information

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IPC IPC(8): G01T1/14G01T7/00
Inventor 滕忠斌宋明哲倪宁高飞魏可新王红玉刘蕴韬
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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